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Finding the Fourth Proportional to 360,813.87, 497,915.58 and 199,659.30

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Solution

The fourth proportional to 360,813.87, 497,915.58 and 199,659.30 is: 275,525.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,813.87 : 497,915.58 = 199,659.30 : x
  2. Step 2: Convert to fraction form
    360,813.87/497,915.58 = 199,659.30/x
  3. Step 3: Cross multiply
    360,813.87x = 497,915.58 × 199,659.30
  4. Step 4: Simplify right side
    360,813.87x = 99,413,476,161.89
  5. Step 5: Solve for x
    x = 99,413,476,161.89/360,813.87
  6. Step 6: Final answer
    x = 275,525.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.